Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative SEM micrographs of A) Finesse and B) Vitadur Alpha at 0, 4 and 60 min time points of APF gel exposure (x500 and x5,000 magnification). A clear trend to rougher surfaces was observed as a function of exposure time. Note also precipitates on the surfaces at 60 min (x5,000)
